| 1 | /* ImageTypeSpecifier.java -- |
| 2 | Copyright (C) 2004 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Classpath. |
| 5 | |
| 6 | GNU Classpath is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | GNU Classpath is distributed in the hope that it will be useful, but |
| 12 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GNU Classpath; see the file COPYING. If not, write to the |
| 18 | Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 19 | 02110-1301 USA. |
| 20 | |
| 21 | Linking this library statically or dynamically with other modules is |
| 22 | making a combined work based on this library. Thus, the terms and |
| 23 | conditions of the GNU General Public License cover the whole |
| 24 | combination. |
| 25 | |
| 26 | As a special exception, the copyright holders of this library give you |
| 27 | permission to link this library with independent modules to produce an |
| 28 | executable, regardless of the license terms of these independent |
| 29 | modules, and to copy and distribute the resulting executable under |
| 30 | terms of your choice, provided that you also meet, for each linked |
| 31 | independent module, the terms and conditions of the license of that |
| 32 | module. An independent module is a module which is not derived from |
| 33 | or based on this library. If you modify this library, you may extend |
| 34 | this exception to your version of the library, but you are not |
| 35 | obligated to do so. If you do not wish to do so, delete this |
| 36 | exception statement from your version. */ |
| 37 | |
| 38 | |
| 39 | package javax.imageio; |
| 40 | |
| 41 | import java.awt.Transparency; |
| 42 | import java.awt.color.ColorSpace; |
| 43 | import java.awt.image.DataBuffer; |
| 44 | import java.awt.image.BandedSampleModel; |
| 45 | import java.awt.image.BufferedImage; |
| 46 | import java.awt.image.ColorModel; |
| 47 | import java.awt.image.ComponentColorModel; |
| 48 | import java.awt.image.DirectColorModel; |
| 49 | import java.awt.image.IndexColorModel; |
| 50 | import java.awt.image.MultiPixelPackedSampleModel; |
| 51 | import java.awt.image.PixelInterleavedSampleModel; |
| 52 | import java.awt.image.RenderedImage; |
| 53 | import java.awt.image.SampleModel; |
| 54 | |
| 55 | /** |
| 56 | * ImageTypeSpecifier store the color and sample models associated |
| 57 | * with an IIOImage. |
| 58 | */ |
| 59 | public class ImageTypeSpecifier |
| 60 | { |
| 61 | /** |
| 62 | * The image's color model. |
| 63 | */ |
| 64 | protected ColorModel colorModel; |
| 65 | |
| 66 | /** |
| 67 | * The image's sample model. |
| 68 | */ |
| 69 | protected SampleModel sampleModel; |
| 70 | |
| 71 | /** |
| 72 | * Construct an image type specifier with the given models. |
| 73 | * |
| 74 | * @param colorModel the color model |
| 75 | * @param sampleModel the sample model |
| 76 | * |
| 77 | * @exception IllegalArgumentException if either model argument is |
| 78 | * null |
| 79 | * @exception IllegalArgumentException if the models are |
| 80 | * incompatible with one another |
| 81 | */ |
| 82 | public ImageTypeSpecifier(ColorModel colorModel, SampleModel sampleModel) |
| 83 | { |
| 84 | if (colorModel == null) |
| 85 | throw new IllegalArgumentException("colorModel may not be null"); |
| 86 | |
| 87 | if (sampleModel == null) |
| 88 | throw new IllegalArgumentException("sampleModel may not be null"); |
| 89 | |
| 90 | if (!colorModel.isCompatibleSampleModel(sampleModel)) |
| 91 | throw new IllegalArgumentException |
| 92 | ("sample Model not compatible with colorModel"); |
| 93 | |
| 94 | this.colorModel = colorModel; |
| 95 | this.sampleModel = sampleModel; |
| 96 | } |
| 97 | |
| 98 | /** |
| 99 | * Construct an image type specifier that describes the given |
| 100 | * rendered image. |
| 101 | * |
| 102 | * @param image a rendered image |
| 103 | * |
| 104 | * @exception IllegalArgumentException if image is null |
| 105 | */ |
| 106 | public ImageTypeSpecifier(RenderedImage image) |
| 107 | { |
| 108 | if (image == null) |
| 109 | throw new IllegalArgumentException("image may not be null"); |
| 110 | |
| 111 | this.colorModel = image.getColorModel(); |
| 112 | this.sampleModel = image.getSampleModel(); |
| 113 | } |
| 114 | |
| 115 | /** |
| 116 | * Create an image type specifier for a banded image using a |
| 117 | * component color model and a banded sample model. |
| 118 | * |
| 119 | * @param colorSpace the color space |
| 120 | * @param bankIndices the bank indices at which each band will be |
| 121 | * stored |
| 122 | * @param bandOffsets the starting band offset for each band within |
| 123 | * its bank |
| 124 | * @param dataType the data type, a DataBuffer constant |
| 125 | * @param hasAlpha true if this image type specifier should have an |
| 126 | * alpha component, false otherwise |
| 127 | * @param isAlphaPremultiplied true if other color components should |
| 128 | * be premultiplied by the alpha component, false otherwise |
| 129 | * |
| 130 | * @return a banded image type specifier |
| 131 | * |
| 132 | * @exception IllegalArgumentException if any of colorSpace, |
| 133 | * bankIndices or bankOffsets is null |
| 134 | * @exception IllegalArgumentException if bankIndices and |
| 135 | * bankOffsets differ in length |
| 136 | * @excpetion IllegalArgumentException if the number of color space |
| 137 | * components, including the alpha component if requested, is |
| 138 | * different from bandOffsets.length |
| 139 | * @exception if dataType is not a valid DataBuffer constant |
| 140 | */ |
| 141 | public static ImageTypeSpecifier createBanded (ColorSpace colorSpace, |
| 142 | int[] bankIndices, |
| 143 | int[] bankOffsets, |
| 144 | int dataType, |
| 145 | boolean hasAlpha, |
| 146 | boolean isAlphaPremultiplied) |
| 147 | { |
| 148 | if (colorSpace == null || bankIndices == null || bankOffsets == null) |
| 149 | throw new IllegalArgumentException ("null argument"); |
| 150 | |
| 151 | if (bankIndices.length != bankOffsets.length) |
| 152 | throw new IllegalArgumentException ("array lengths differ"); |
| 153 | |
| 154 | if (bankOffsets.length != (colorSpace.getNumComponents() + (hasAlpha ? 1 : 0))) |
| 155 | throw new IllegalArgumentException ("invalid bankOffsets length"); |
| 156 | |
| 157 | return new ImageTypeSpecifier (new ComponentColorModel (colorSpace, |
| 158 | hasAlpha, |
| 159 | isAlphaPremultiplied, |
| 160 | hasAlpha ? Transparency.TRANSLUCENT : Transparency.OPAQUE, |
| 161 | dataType), |
| 162 | new BandedSampleModel (dataType, 1, 1, 1, |
| 163 | bankIndices, |
| 164 | bankOffsets)); |
| 165 | } |
| 166 | |
| 167 | /** |
| 168 | * Create a buffered image with the given dimensions using that has |
| 169 | * the characteristics specified by this image type specifier. |
| 170 | * |
| 171 | * @param the width of the buffered image, in pixels |
| 172 | * @param the height of the buffered image, in pixels |
| 173 | * |
| 174 | * @return a buffered image |
| 175 | * |
| 176 | * @exception IllegalArgumentException if either width or height is |
| 177 | * less than or equal to zero |
| 178 | * @exception IllegalArgumentException if width * height is greater |
| 179 | * than Integer.MAX_VALUE or if the storage required is greater than |
| 180 | * Integer.MAX_VALUE |
| 181 | */ |
| 182 | public BufferedImage createBufferedImage (int width, int height) |
| 183 | { |
| 184 | if (width <= 0 || height <= 0) |
| 185 | throw new IllegalArgumentException ("dimension <= 0"); |
| 186 | |
| 187 | // test for overflow |
| 188 | if (width * height < Math.min (width, height)) |
| 189 | throw new IllegalArgumentException ("width * height > Integer.MAX_VALUE"); |
| 190 | |
| 191 | if (width * height * sampleModel.getNumBands() < Math.min (width, height)) |
| 192 | throw new IllegalArgumentException ("storage required >" |
| 193 | + " Integer.MAX_VALUE"); |
| 194 | |
| 195 | // FIXME: this is probably wrong: |
| 196 | return new BufferedImage (width, height, BufferedImage.TYPE_INT_RGB); |
| 197 | } |
| 198 | |
| 199 | /** |
| 200 | * Create an image type specifier that describes the given buffered |
| 201 | * image type. |
| 202 | * |
| 203 | * @param bufferedImageType the buffered image type to represent |
| 204 | * with the returned image type specifier |
| 205 | * |
| 206 | * @return a new image type specifier |
| 207 | * |
| 208 | * @exception IllegalArgumentException if bufferedImageType is not a |
| 209 | * BufferedImage constant or is BufferedImage.TYPE_CUSTOM |
| 210 | */ |
| 211 | public static ImageTypeSpecifier createFromBufferedImageType (int bufferedImageType) |
| 212 | { |
| 213 | if (bufferedImageType <= BufferedImage.TYPE_CUSTOM |
| 214 | || bufferedImageType > BufferedImage.TYPE_BYTE_INDEXED) |
| 215 | throw new IllegalArgumentException ("invalid buffered image type"); |
| 216 | |
| 217 | return new ImageTypeSpecifier (new BufferedImage (1, 1, bufferedImageType)); |
| 218 | } |
| 219 | |
| 220 | /** |
| 221 | * Create an image type specifier that describes the given rendered |
| 222 | * image's type. |
| 223 | * |
| 224 | * @param image the rendered image |
| 225 | * |
| 226 | * @return a new image type specifier |
| 227 | * |
| 228 | * @exception IllegalArgumentException if image is null |
| 229 | */ |
| 230 | public static ImageTypeSpecifier createFromRenderedImage (RenderedImage image) |
| 231 | { |
| 232 | if (image == null) |
| 233 | throw new IllegalArgumentException ("image null"); |
| 234 | |
| 235 | return new ImageTypeSpecifier (image); |
| 236 | } |
| 237 | |
| 238 | /** |
| 239 | * Create a grayscale image type specifier, given the number of |
| 240 | * bits, data type and whether or not the data is signed. |
| 241 | * |
| 242 | * @param bits the number of bits used to specify a greyscale value |
| 243 | * @param dataType a DataBuffer type constant |
| 244 | * @param isSigned true if this type specifier should support |
| 245 | * negative values, false otherwise |
| 246 | * |
| 247 | * @return a greyscal image type specifier |
| 248 | * |
| 249 | * @exception IllegalArgumentException if bits is not 1, 2, 4, 8 or 16 |
| 250 | * @exception IllegalArgumentException if dataType is not |
| 251 | * DataBuffer.TYPE_BYTE, DataBuffer.TYPE_SHORT or |
| 252 | * DataBuffer.TYPE_USHORT |
| 253 | * @exception if bits is larger than the number of bits in the given |
| 254 | * data type |
| 255 | */ |
| 256 | public static ImageTypeSpecifier createGrayscale (int bits, int dataType, boolean isSigned) |
| 257 | { |
| 258 | return createGrayscale (bits, dataType, isSigned, false); |
| 259 | } |
| 260 | |
| 261 | /** |
| 262 | * Create a grayscale image type specifier, given the number of |
| 263 | * bits, data type and whether or not the data is signed. |
| 264 | * |
| 265 | * @param bits the number of bits used to specify a greyscale value |
| 266 | * @param dataType a DataBuffer type constant |
| 267 | * @param isSigned true if this type specifier should support |
| 268 | * negative values, false otherwise |
| 269 | * |
| 270 | * @return a greyscal image type specifier |
| 271 | * |
| 272 | * @exception IllegalArgumentException if bits is not 1, 2, 4, 8 or |
| 273 | * 16 |
| 274 | * @exception IllegalArgumentException if dataType is not |
| 275 | * DataBuffer.TYPE_BYTE, DataBuffer.TYPE_SHORT or |
| 276 | * DataBuffer.TYPE_USHORT |
| 277 | * @exception if bits is larger than the number of bits in the given |
| 278 | * data type |
| 279 | */ |
| 280 | public static ImageTypeSpecifier createGrayscale (int bits, int dataType, |
| 281 | boolean isSigned, |
| 282 | boolean isAlphaPremultiplied) |
| 283 | { |
| 284 | if (bits != 1 && bits != 2 && bits != 4 && bits != 8 && bits != 16) |
| 285 | throw new IllegalArgumentException ("invalid bit size"); |
| 286 | |
| 287 | if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_SHORT |
| 288 | && dataType != DataBuffer.TYPE_USHORT) |
| 289 | throw new IllegalArgumentException ("invalid data type"); |
| 290 | |
| 291 | if (dataType == DataBuffer.TYPE_BYTE && bits > 8) |
| 292 | throw new IllegalArgumentException ("number of bits too large for data type"); |
| 293 | |
| 294 | // FIXME: this is probably wrong: |
| 295 | return new ImageTypeSpecifier (new DirectColorModel (bits, 0xff, 0x0, |
| 296 | 0x0, 0xff), |
| 297 | new MultiPixelPackedSampleModel (dataType, |
| 298 | 1, 1, |
| 299 | bits)); |
| 300 | } |
| 301 | |
| 302 | /** |
| 303 | * Return an image type specifier for an image that uses an indexed |
| 304 | * colour model where each colour value has the specified number of |
| 305 | * bits and type and where the colour tables are those given. |
| 306 | * |
| 307 | * @param redLUT the red index values |
| 308 | * @param greenLUT the green index values |
| 309 | * @param blueLUT the blue index values |
| 310 | * @param alphaLUT the alpha index values |
| 311 | * @param bits the number of bits per index value |
| 312 | * @param dataType the type of each index value |
| 313 | * |
| 314 | * @return an indexed image type specifier |
| 315 | * |
| 316 | * @exception IllegalArgumentException if any of the colour arrays, |
| 317 | * not including alphaLUT, is null |
| 318 | * @exception IllegalArgumentException if bits is not 1, 2, 4, 8 or |
| 319 | * 16 |
| 320 | * @exception IllegalArgumentException if dataType is not |
| 321 | * DataBuffer.TYPE_BYTE, DataBuffer.TYPE_SHORT or |
| 322 | * DataBuffer.TYPE_USHORT |
| 323 | * @exception if bits is larger than the number of bits in the given |
| 324 | * data type |
| 325 | */ |
| 326 | public static ImageTypeSpecifier createIndexed (byte[] redLUT, |
| 327 | byte[] greenLUT, |
| 328 | byte[] blueLUT, |
| 329 | byte[] alphaLUT, |
| 330 | int bits, |
| 331 | int dataType) |
| 332 | { |
| 333 | if (redLUT == null || greenLUT == null || blueLUT == null) |
| 334 | throw new IllegalArgumentException ("null colour table"); |
| 335 | |
| 336 | if (bits != 1 && bits != 2 && bits != 4 && bits != 8 && bits != 16) |
| 337 | throw new IllegalArgumentException ("invalid bit size"); |
| 338 | |
| 339 | if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_SHORT |
| 340 | && dataType != DataBuffer.TYPE_USHORT) |
| 341 | throw new IllegalArgumentException ("invalid data type"); |
| 342 | |
| 343 | if (dataType == DataBuffer.TYPE_BYTE && bits > 8) |
| 344 | throw new IllegalArgumentException ("number of bits too large for data type"); |
| 345 | |
| 346 | // FIXME: this is probably wrong: |
| 347 | return new ImageTypeSpecifier (new IndexColorModel (bits, redLUT.length, |
| 348 | redLUT, greenLUT, blueLUT, |
| 349 | alphaLUT), |
| 350 | new MultiPixelPackedSampleModel (dataType, |
| 351 | 1, 1, |
| 352 | bits)); |
| 353 | } |
| 354 | |
| 355 | /** |
| 356 | * Create an image type specifier that uses a component colour model |
| 357 | * and a pixel interleaved sample model. Each pixel component will |
| 358 | * be stored in a separate value of the given data type. |
| 359 | * |
| 360 | * @param colorSpace the colour space used by the colour model |
| 361 | * @param bandOffsets the starting band offset for each band within |
| 362 | * its bank |
| 363 | * @param dataType the type of each pixel value |
| 364 | * @param hasAlpha true if an alpha channel should be specified, |
| 365 | * false otherwise |
| 366 | * @param isAlphaPremultiplied true if other colour channels should |
| 367 | * be premultiplied by the alpha value, false otherwise |
| 368 | * |
| 369 | * @return an interleaved image type specifier |
| 370 | * |
| 371 | * @exception IllegalArgumentException if either colorSpace or |
| 372 | * bandOffsets is null |
| 373 | * @excpetion IllegalArgumentException if the number of color space |
| 374 | * components, including the alpha component if requested, is |
| 375 | * different from bandOffsets.length |
| 376 | * @exception if dataType is not a valid DataBuffer constant |
| 377 | */ |
| 378 | public static ImageTypeSpecifier createInterleaved (ColorSpace colorSpace, |
| 379 | int[] bandOffsets, |
| 380 | int dataType, |
| 381 | boolean hasAlpha, |
| 382 | boolean isAlphaPremultiplied) |
| 383 | { |
| 384 | if (colorSpace == null || bandOffsets == null) |
| 385 | throw new IllegalArgumentException ("null argument"); |
| 386 | |
| 387 | if (bandOffsets.length != (colorSpace.getNumComponents() + (hasAlpha ? 1 : 0))) |
| 388 | throw new IllegalArgumentException ("invalid bankOffsets length"); |
| 389 | |
| 390 | return new ImageTypeSpecifier (new ComponentColorModel (colorSpace, |
| 391 | hasAlpha, |
| 392 | isAlphaPremultiplied, |
| 393 | hasAlpha ? Transparency.TRANSLUCENT : Transparency.OPAQUE, |
| 394 | dataType), |
| 395 | new PixelInterleavedSampleModel (dataType, 1, 1, 1, 1, |
| 396 | bandOffsets)); |
| 397 | } |
| 398 | |
| 399 | /** |
| 400 | * Create an image type specifier using a direct color model and a |
| 401 | * packed sample model. All pixel components will be packed into |
| 402 | * one value of the given data type. |
| 403 | * |
| 404 | * @param colorSpace the color space to use in the color model |
| 405 | * @param redMask the bitmask for the red bits |
| 406 | * @param greenMask the bitmask for the green bits |
| 407 | * @param blueMask the bitmask for the blue bits |
| 408 | * @param alphaMask the bitmask for the alpha bits |
| 409 | * @param transferType the data type used to store pixel values |
| 410 | * @param isAlphaPremultiplied true if other colour channels should |
| 411 | * be premultiplied by the alpha value, false otherwise |
| 412 | * |
| 413 | * @return a packed image type specifier |
| 414 | * |
| 415 | * @exception IllegalArgumentException if colorSpace is null |
| 416 | * @exception IllegalArgumentException if colorSpace does not have |
| 417 | * type ColorSpace.TYPE_RGB |
| 418 | * @exception IllegalArgumentException if all masks are 0 |
| 419 | * @exception IllegalArgumentException if dataType is not |
| 420 | * DataBuffer.TYPE_BYTE, DataBuffer.TYPE_SHORT or |
| 421 | * DataBuffer.TYPE_INT |
| 422 | */ |
| 423 | public static ImageTypeSpecifier createPacked (ColorSpace colorSpace, |
| 424 | int redMask, |
| 425 | int greenMask, |
| 426 | int blueMask, |
| 427 | int alphaMask, |
| 428 | int transferType, |
| 429 | boolean isAlphaPremultiplied) |
| 430 | { |
| 431 | if (colorSpace == null) |
| 432 | throw new IllegalArgumentException ("null color space"); |
| 433 | |
| 434 | if (colorSpace.getType() != ColorSpace.TYPE_RGB) |
| 435 | throw new IllegalArgumentException ("invalid color space type"); |
| 436 | |
| 437 | if (redMask == 0 && greenMask == 0 && blueMask == 0 && alphaMask == 0) |
| 438 | throw new IllegalArgumentException ("no non-zero mask"); |
| 439 | |
| 440 | if (transferType != DataBuffer.TYPE_BYTE && transferType != DataBuffer.TYPE_USHORT |
| 441 | && transferType != DataBuffer.TYPE_INT) |
| 442 | throw new IllegalArgumentException ("invalid data type"); |
| 443 | |
| 444 | // Assume DataBuffer.TYPE_BYTE. |
| 445 | int numBits = 8; |
| 446 | |
| 447 | if (transferType == DataBuffer.TYPE_SHORT) |
| 448 | numBits = 16; |
| 449 | else if (transferType == DataBuffer.TYPE_INT) |
| 450 | numBits = 32; |
| 451 | |
| 452 | return new ImageTypeSpecifier (new DirectColorModel (colorSpace, |
| 453 | numBits, |
| 454 | redMask, |
| 455 | greenMask, |
| 456 | blueMask, |
| 457 | alphaMask, |
| 458 | isAlphaPremultiplied, |
| 459 | transferType), |
| 460 | new MultiPixelPackedSampleModel (transferType, |
| 461 | 1, 1, numBits)); |
| 462 | } |
| 463 | |
| 464 | /** |
| 465 | * Get the number of bits per sample in the given band. |
| 466 | * |
| 467 | * @param band the band from which to get the number of bits |
| 468 | * |
| 469 | * @return the number of bits in the given band |
| 470 | * |
| 471 | * @exception IllegalArgumentException if band is out-of-bounds |
| 472 | */ |
| 473 | public int getBitsPerBand (int band) |
| 474 | { |
| 475 | if (band < 0 || band > sampleModel.getNumBands()) |
| 476 | throw new IllegalArgumentException ("band out-of-bounds"); |
| 477 | |
| 478 | return sampleModel.getSampleSize (band); |
| 479 | } |
| 480 | |
| 481 | /** |
| 482 | * Get the buffered image constant specified by this image type |
| 483 | * specifier. |
| 484 | * |
| 485 | * @return a buffered image constant |
| 486 | */ |
| 487 | public int getBufferedImageType () |
| 488 | { |
| 489 | // FIXME: |
| 490 | return BufferedImage.TYPE_INT_RGB; |
| 491 | } |
| 492 | |
| 493 | /** |
| 494 | * Create a sample model that is compatible with the one specified |
| 495 | * by this image type specifier, with the given dimensions. |
| 496 | * |
| 497 | * @param width the width of the returned sample model |
| 498 | * @param height the height of the returned sample model |
| 499 | * |
| 500 | * @return a sample model compatible with the one in this image type |
| 501 | * specifier, with the given dimensions |
| 502 | * |
| 503 | * @exception IllegalArgumentException if either width or height is |
| 504 | * less than or equal to 0 |
| 505 | * @exception IllegalArgumentException if width * height is greater |
| 506 | * than Intere.MAX_VALUE |
| 507 | */ |
| 508 | public SampleModel getSampleModel (int width, int height) |
| 509 | { |
| 510 | if (width <= 0 || height <= 0) |
| 511 | throw new IllegalArgumentException ("invalid dimension"); |
| 512 | |
| 513 | // test for overflow |
| 514 | if (width * height < Math.min (width, height)) |
| 515 | throw new IllegalArgumentException ("width * height > Integer.MAX_VALUE"); |
| 516 | |
| 517 | return sampleModel.createCompatibleSampleModel (width, height); |
| 518 | } |
| 519 | |
| 520 | /** |
| 521 | * Get the color model specified by this image type specifier. |
| 522 | * |
| 523 | * @return the color model |
| 524 | */ |
| 525 | public ColorModel getColorModel() |
| 526 | { |
| 527 | return colorModel; |
| 528 | } |
| 529 | |
| 530 | /** |
| 531 | * Get the number of bands specified by this image type specifier's |
| 532 | * sample model. |
| 533 | * |
| 534 | * @return the number of bands in the sample model |
| 535 | */ |
| 536 | public int getNumBands() |
| 537 | { |
| 538 | return sampleModel.getNumBands(); |
| 539 | } |
| 540 | |
| 541 | /** |
| 542 | * Get the number of components specified by this image type |
| 543 | * specifier's color model. |
| 544 | * |
| 545 | * @return the number of color components per pixel |
| 546 | */ |
| 547 | public int getNumComponents() |
| 548 | { |
| 549 | return colorModel.getNumComponents(); |
| 550 | } |
| 551 | |
| 552 | /** |
| 553 | * Get the sample model specified by this image type specifier. |
| 554 | * |
| 555 | * @return the sample model |
| 556 | */ |
| 557 | public SampleModel getSampleModel() |
| 558 | { |
| 559 | return sampleModel; |
| 560 | } |
| 561 | } |